Which versions of Libuvc are affected by CVE-2026-1991?

CVE-2026-1991 is a low-severity vulnerability in libuvc (CVSS 3.3). The limited severity suggests constrained impact, typically requiring specific conditions or local access for exploitation.

Is there a public PoC exploit available for CVE-2026-1991?

Yes, a public proof-of-concept exploit is available for CVE-2026-1991. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-1991?

During next maintenance window: Apply vendor patches when convenient. Monitor vendor channels for updates.

Libuvc CVE-2026-1991

Q: What is the CVSS score of CVE-2026-1991?

CVE-2026-1991 has a CVSS 4.0 base score of 1.9 (Low). CVSS vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.0%.

LOW

Improper Resource Shutdown or Release (CWE-404)

2026-02-06 cna@vuldb.com

Denial Of Service Libuvc

1.9

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

1.9 LOW

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

CVSS changed

Apr 29, 2026 - 01:11 NVD

3.3 (LOW) 1.9 (LOW)

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Mar 05, 2026 - 20:58 vuln.today

Public exploit code

CVE Published

Feb 06, 2026 - 06:15 nvd

LOW 3.3

DescriptionCVE.org

A vulnerability was detected in libuvc up to 0.0.7. Affected is the function uvc_scan_streaming of the file src/device.c of the component UVC Descriptor Handler. The manipulation results in null pointer dereference. The attack needs to be approached locally. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

AnalysisAI

A vulnerability was detected in libuvc up to 0.0.7. Affected is the function uvc_scan_streaming of the file src/device.c of the component UVC Descriptor Handler. [CVSS 3.3 LOW]

Technical ContextAI

Classified as CWE-404 (Improper Resource Shutdown or Release). Affects Libuvc. A vulnerability was detected in libuvc up to 0.0.7. Affected is the function uvc_scan_streaming of the file src/device.c of the component UVC Descriptor Handler. The manipulation results in null pointer dereference. The attack needs to be approached locally. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.